/*
* $RCSfile$
* $Author: egonw $
* $Date: 2008-07-25 02:46:55 -0400 (Fri, 25 Jul 2008) $
* $Revision: 11746 $
*
* Copyright (C) 2002-2006 The Chemistry Development Kit (CDK) project
*
* Contact: cdk-devel@lists.sourceforge.net
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
* All I ask is that proper credit is given for my work, which includes
* - but is not limited to - adding the above copyright notice to the beginning
* of your source code files, and to any copyright notice that you may distribute
* with programs based on this work.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
package org.openscience.cdk.isomorphism.matchers.smarts;
import org.openscience.cdk.interfaces.IAtom;
import org.openscience.cdk.tools.periodictable.PeriodicTable;
/**
* This matcher checks the periodic group number of an atom.
*
* @cdk.module smarts
* @cdk.githash
* @cdk.keyword SMARTS
*/
public class PeriodicGroupNumberAtom extends SMARTSAtom {
int groupNumber;
/**
* Creates a new instance
*
* @param groupNumber the periodic group number
*/
public PeriodicGroupNumberAtom(int groupNumber) {
this.groupNumber = groupNumber;
}
/* (non-Javadoc)
* @see org.openscience.cdk.isomorphism.matchers.smarts.SMARTSAtom#matches(org.openscience.cdk.interfaces.IAtom)
*/
public boolean matches(IAtom atom) {
String symbol = atom.getSymbol();
int group = PeriodicTable.getGroup(symbol);
return group == this.groupNumber;
}
/* (non-Javadoc)
* @see org.openscience.cdk.PseudoAtom#toString()
*/
public String toString() {
return ("PeriodicGroupNumberAtom(" + this.groupNumber + ")");
}
}